CVE-2026-57961: phpMyFAQ - Authenticated Path Traversal in PDF Export via concatenatePaths Function

Severity: low (CVSS 2.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-10 · updated 2026-07-10
Weakness: CWE-22

Description

phpMyFAQ before 4.1.5 contains a potential authenticated path traversal vulnerability in the concatenatePaths() function within src/phpMyFAQ/Export/Pdf/Wrapper.php. A user with FAQ editing privileges can store HTML containing crafted image paths that are processed during PDF generation. The path resolution logic locates the substring "content" within a user-controlled path using strpos(); when "content" is absent, strpos() returns false, which becomes 0 when cast to an integer, preserving the entire attacker-controlled path. This path is later passed to file_get_contents() without canonicalization or root-directory containment validation, which may allow reading of files outside the intended content directory.

Affected products

thorsten phpMyFAQ: before 4.1.5 — fixed in 4.1.5

How to fix

Upgrade to a fixed version: thorsten phpMyFAQ 4.1.5. Check the vendor advisory for mitigations.

References

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